This was file recipe.sgml.

<!doctype recipe system "recipe.dtd">
<recipe>
  <title>Chocolate fudge</title>
  <comment>My mother's recipe</comment>
  <ingredients>
    <ingredient quant='1' lb>sugar
    <ingredient quant='4' oz>chocolate
    <ingredient quant='&amp;frac12;' pt>cream
    <ingredient quant='1' oz>butter
  </ingredients>
  <method>
    <list>
      <item>Mix the ingredients in a pan
      <item>Heat to 234&amp;deg;F, stirring constantly
      <item>Pour into greased flat tin
      <item>Allow to cool before cutting
    </list>
  </method>
  <source>Adapted from the Good Housekeepings cookbook</source>
</recipe>